Chair



F1 6. ll.

APPLICATION FILED OCT. 13. I919.

W. LANG.

CHAIR.

FIG. 2. CJ24 f j Z0 7 g/w 32 W I Patented Aug. 10, 1920.

SSHEETS-SHEET I.

I i 7.9 2 27 a2 I NV EN TOR.

Jo/0v W. LANG ATTORNEYS.

J. W. LANG.

CHAIR.

0W 92 n 0 m 4 A J d m m e m F P T. c 0 w W m INVENTOR. JOHN W. LANG J.W. LANG.

CHAIR.

' EL,34:9,164I. APPLICATION FILED OCT. 13, 19I9. 10,

3 SHEETSSHEET 3.

I F/G.8.

INVENTOR. JOHN W L ANG A TTORNEYS.

JOEE W. LANG, F immonno BEACH, CALIFORNIA.

CHAIR.

Specification of Letters Batentf Patented Aug. 10, 1920.v

Application filed October 18, 1919.? SerialNo. 330,393.

To all eokom it mar, concern B9113 known that 1, JOHN W. LANG, a citizenof the United States, residing at Redondo Beach, in" the county of LosAn- 1 geles and Stateof California, have invented new and usefulImprovements in Chairs,

of which the following is a specification.

My object is to make a chair which may be readily transformed into atable, and

my invention consists of the novel features herein shown, described andclaimed.

Figure l is a perspective of-a chair transformable into a table inaccordance with the principles of my invention. Fig. 2 is a sideelevation of the stand and chair seat with the back and tableconstruevtion removed.

Fig. 3 is an edge view of the chair'back and table construction removedfrom the stand. 1

. Fig. 4 is a perspective showing the chair back tilted forwardly uponthe stand in solid. lines and showing the movement of the chairbacldupon the stand in dotted lines, and showing the leaves unfolded tomake a round table in dotted-lines.

Fig. 5 s a view analogous to Fig. d and showing'the leaves unfolded anddropped to make a small table.

80 Fig. 6 is atop plan view upon an enlarged scale and showing the tableextended.

Fig. 7 is a sectional side elevation upon an enlarged scale with theparts in position to form a chair. Fig. 8 is a fragmentary detailshowing the connection between the stand and the chair back with theparts shown in full lines in the position forming a table and in dottedlines in the position forming a chair,

4 0 Fig. 9 is a sectional detail showing the disappearing hinge, t eview'being taken on the line 99 of-Fig. 5 and showing the leavesunfolded. Fig. 10 is a view analogous to Fig. 9 and showing the leavesfolde Fig. 11 is a fragmentary top plan view of the stand. e 1

The details .of the-stand 1 areshown in Figs. 1,2, lands. Thelower sidebars 2 and 3aremounted upon casters 4 and 5 and are rigidlyponnected bya cross piece 6. The rear posts 7 and 8 extend upwardly from the rearends of the side hars-2;a-nd 3 and the front posts 9yand10 extend up-1'55 ,wardly from the forward ends of the side hars 2 and 3. The seatframe 11 rigidly connects the posts 7, 8,9 and 10 about half way upfromtheir bottoms, the lower ends of the posts 7, ,8, 9 and 10 servingas legs for the chair and the upper ends of the posts serving supportsfor the. chair arms. The chair arms 12 and 13 are rigidly mounted uponthe upper ends of the posts 9 and 7 and 10 andS. The chair arms 12 and13 have flatv straight horizontal upper faces flat and 15 and straightparallel vertical innerfaces 16 and '17. iivot plates 18 and 19 arerecessed into. the faces 16 and 17 at their rear ends, and the pivotpins 20 and 21 extend inwardly from the plates 18 and 19. Retaining'pins" 22 and 23 are fixed in the arms 12 and 13 and extend inwardlynear the forward'ends of the arms. Rubhing heads 24 and 25 are fixed tothe arms 7 mounted in the seat frame 11.

The details of the chair back and table construction 27 are shown inFigs. 1, 3, 4L, 5, 7, 8,9 and 10.

The chair back frame consists of the side bars 28 and 29,the lower crossbar 30, the upper cross bar 31 and the panel 32 inserted between theside bars and cross bars. The

side bars 28 and 29 have straight outer faces 33 and 34 fitting betweenthe faces 16 and 17. Plates 35 and 36 are embedded into the faces 33 and34 and have longitudinal slot-s37 extending some distance and crossslots 38 leading laterally to the longitudinal slots 37, the cross slots38 being slightly above the centers of thelongitudinal slots 37.

he pivot pins 20 and 21 pass through the cross slots 38 into thelongitudinal slots 37 and when the chair back is elevated to a verticalposition and lowered bodily the pins 20 and 2lpass to the upper ends 39of the slots 37, and when the back is tilted forwardly andmovedforwardly to be centered over the stand 1 the pins 20 and 21 passto Plates 41 and 42 are embedded iiito the ice ' 68 have T-slots 69 and70 and the slides 67 will lock the parts in a horizontal position.

The heads 24 and 25 and the lates 41 and 42 serve to protect the wood.he cross bar 30 passes between the posts 7 and 8 directly above the seat26.

Arms 44 extend downwardly from the side bars 28 and 29 and a cross bar45 connects the lower ends of the arms 44. The arms '44 engage the seatframe 11 and form stops to hold the chair back and table constructionupright.

The side bars 28 and 29 are slightly, tapered in side elevation and thepanel 32 is slightly inclined. F rame boards 46 are secured to the backof the cross bar 30 and fit against the lower edge of the cross bar 31so as to bring the boards 46 practically straight up and down. A spacinboard 47 is secured to the. back side of t e cross bar 45, and a similarspacing board .48 is secured againstthe back side of the cross bar 31.

The rigid sliding table top leaves 49 and 50 fit against the back sidesof the boards 47 and 48 when the table top is contracted.

The'slides 51' and 52 are fixed against the bottom of the leaf 49 andthe slides 53 and 54 are fixed against cthe bottom of the leaf 50, saidslides 53 and 54 being ofiset relative to the slides 51 and 52 so thatthe slides 51 and 53 will pass along side of each other and the slides52 and 54 will pass along side of each other when the table iscontracted. T-slots 55, 56, 57 and 58 are formed in the slides 51, 52,53 and 54. i

Screws 59, 60, 61 and 62 are inserted downwardly through the T-slots 55,56, 57 and 58 and screwed rigidly into the board 46, said screws fittingloose enough in the slots to allow the slides 51, 52, 53 and 54 to move,and the slots being long enough to allow the leaves 49 and 50 to movetogether as in Fig.

5 and'to allow the leaves 49 and 50 to. move apart for the insertion ofthe extension leaves 63 and 64.

Filler blocks 65 are inserted against the back sides of the side bars 28and 29 to a level with the back face of the board 46 and form slidewaysfor the slides 51, 52 53.

and 54. A brace 66 connects the center ones of the filler blocks 65 andpasses back of the board 46 to stiffen the board.

. The folding leaf supporting slides 67 and and 68 fit upwardly againstthe sliding leaves 49 and 50 and screws 71 and 72 are inserted upwardlythrough theslots 69 and and screwed rigidl into the leaves 49- and 50.The slides 6 and 68v are longer than the widths-of the leaves 49 and 50together, so that when the leaves .49 and 50 are together the ends 73,74', 75 and 76 of the slides 67 and 68extend beyond the side edgesof theleaves 49 and 50- and these ends are directly back of the rear ends ofthe arms 12 and 13. Spacing bl0cks'77 and 78 are fixed against the lowersides of the leaves 49 and 50 so as to bear against the inner sides ofthe slides 67 and 68 and hold the slides straight. I

Intermediate. folding leaves 79 and 80 are connected to the outer edgesof the sliding leaves 49 and 50 by invisible-hinges 81. Referring toFigs. 9- and 10- the hinges 81 are recessed into the-meeting edges, sothat T swardly, inwardlyand downwardly they will lie fiat upon theleaves 49 and 50.

The outer folding leaves 83 and 84 are connected to the outer edges ofthe intermediate folding leaves 79 and 80 by butt hinges 85 secured totheir lower faces, so that when the leaves 79 and 80 are supported bythe slides 67 and 68 the leaves 83 and 84 will hang downwardly as inFig. 5, and so that when the leaves 83 and 84 are raised until theirinner edges engage the outer edges of the leaves 79 and 80 stiff jointswill be formed and continued upward movement will carry the leaves 79and 80 over on to the leaves 49 and 50. The slides 67 and 68 may; bepulled outwardly to support the leaves 83 and 84.

When the table is contracted and folded, as in Fig. 4, the leaves 83 and79 lie upon the leaf 49. and the leaves 84 and 80 lie upon the leaf 50.Handwheels 86 and 87 are se- 1. A transformable chair comprising a standhaving horizontal parallel arms, pivot pins extending inwardly from therear ends of the arms, supporting pins extending inwardly from near thefront en 5 of the arms, .a chair back having side bars tting looselybetween the arms, plates at the outer faces of the side bars and havinglongitudinally extending slots and lateral ate of the ends of thelongitudinally extending slots, said slots being adapted to receive thepivot pins, second plates at the outer sides of the side bars and havingL-slots adapted to receive the supporting pins, and a table top mountedupon the chair back.

2. A transformable chair comprising a stand having horizontal parallelarms, pivot pins extending inwardly from the rear ends of the arms,supporting pins extending inwardly from near the front ends of the arms,rubbing heads secured to the arms above the supporting pins, a chairback having side bars fitting loosely between the arms, plates at theouter faces of the side bars and having longitudinally extending slotsand lateral slots intermediate of the ends of the longitudinallyextending slots, said slots being adapted to receive the pivot pins,second plates at the outer sides of the side bars and having' L-slotsadapted to receive the supporting pins, and a table top mounted upon thechair back.

3. A transformable chair comprising a slots intermediby invisiblehinges, means for supporting the intermediate leaves in their unfolded'positions, and outer drop leaves secured to the intermediate leaves bybutt hinges.

' 4. A transformable chair comprising a stand, a chair back pivotallyconnected to the stand and adapted to swing from a vertical position toa horizontal position, means for supporting the chair back in thehorizontalq" position, leaves slidingly mounted upon the chair back,extension leaves adapted to be inserted between the sliding leaves,

intermediate leaves connected to the outer edges of the sliding leavesby invisible hinges, and outer leaves connected to the intermediateleaves by butt hinges.

In testimony whereof I have signed my name to this specification.

JOHN W. LANG.

